Following the tragic crash of a Germanwings jet that claimed the lives of 150 people this week, attention turned to co-pilot Andreas Lubitz, who officials say purposely crashed the Airbus A320 into the French Alps.

Here is a Newsmax look at several key facts that have emerged about the 28-year German flyer:

1. Andreas Guenter Lubitz had no criminal record and was not on any terrorist watch list.

2. Lubitz took a break in his flight trainingsix years ago. The mother of one of his classmates told a German newspaper that "he had a burnout, depression."

3. Lubitz lived with his parents in a single-family, two-story home in a subdivision on the edge of Montabaur, Germany, a town about 40 miles northwest of Frankfurt. Police set up a guard outside his parents' home after the crash.

4. He also reportedly had an apartment in Dusseldorf, the destination of the doomed Flight 9525 from Barcelona.

5. Lubitz joined low-cost carrier Germanwings in September 2013 after finishing flight school with Lufthansa, Germanwings' parent company.

6. Lubitz also trained in Phoenix, Arizona.

7. He had just 630 hours of flying time, compared with the 6,000 hours of the flight's pilot.

8. He had a girlfriend. Peter Ruecker, a member of the LSC Westerwald flight club in Montabaur, which Lubitz belonged to, told The Associated Press that Lubitz was seeing someone. She was reportedly headed to the crash scene in France but changed her plans after news broke that Lubitz had intentionally brought the aircraft down.

9. Ruecker described Lubitz as "a lot of fun," although he was "sometimes a bit quiet."

10. Lubitz started out as a glider student. He visited the flight club last fall to renew his glider's license. At the time, he "was happy he had a job with Germanwings and he was doing well," Ruecker said. "He was very happy."

11. Lubitz had a U.S. private pilot's license, issued in 2012 by the United States Federal Aviation Administration (FAA). The FAA also issued him a student license in 2010.

12. The FAA recognized Lubitz in its Airmen's Certification Database, including him among pilots who have met or exceeded the educational, licensing, and medical standards established by the FAA.

13. Lubitz was "proficient" in English, according to his FAA license.

14. His Facebook photo showed him smiling in front of the Golden Gate Bridge. The page was later taken down.

15. The Facebook page included a link to a result in the 2011 Lufthansa half marathon, in Frankfurt, where a runner with the handle "flying_andy" was said to have run the race in 1 hour and 48 minutes.

16. Lubitz can be heard breathing calmly on the black box recording as Flight 9525 descended before crashing into a mountainside at 430 miles per hour.